EP 0466243 B1 19940907 - Process for the preparation of secondary alkyl sulfate-containing surfactant compositions.
Title (en)
Process for the preparation of secondary alkyl sulfate-containing surfactant compositions.
Title (de)
Verfahren zur Herstellung von sekundäralkylsulfathaltigen Tensidgemischen.
Title (fr)
Procédé de préparation de compositions tensio-actives contenant des alkyl sulphates secondaires.
Publication
Application
Priority
US 54502590 A 19900628
Abstract (en)
[origin: EP0466243A1] This invention relates to a process for preparing secondary alkyl sulfate-containing surface active compositions substantially free of unreacted organic matter and water, which process comprises: a) sulfating a detergent range olefin having from 8 to 22 carbon atoms with concentrated sulfuric acid, b) neutralizing the product of step a) with a base dispersed in a nonionic surfactant having a boiling point higher than that of said detergent range olefin and its corresponding secondary alcohol, c) saponifying the product of step b), d) passing the product of step c) through a thin film evaporator to evaporate unreacted organic matter from said product and recovering said product. o
IPC 1-7
IPC 8 full level
B01F 17/00 (2006.01); C07C 303/24 (2006.01); C07C 305/06 (2006.01); C07C 305/08 (2006.01); C09K 23/00 (2022.01); C11D 1/14 (2006.01); C11D 11/04 (2006.01)
CPC (source: EP KR US)
C07C 305/06 (2013.01 - EP US); C07C 305/08 (2013.01 - EP US); C11D 1/146 (2013.01 - EP US); C11D 1/28 (2013.01 - KR); C11D 11/04 (2013.01 - EP US); Y10S 516/03 (2013.01 - EP US); Y10S 516/05 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0466243 A1 19920115; EP 0466243 B1 19940907; AU 634401 B2 19930218; AU 7934591 A 19920102; DE 69103837 D1 19941013; DE 69103837 T2 19950112; ES 2060287 T3 19941116; JP 2906298 B2 19990614; JP H04230356 A 19920819; KR 100196658 B1 19990615; KR 920000909 A 19920129; PT 98093 A 19930630; PT 98093 B 19981231; US 5075041 A 19911224
DOCDB simple family (application)
EP 91201673 A 19910628; AU 7934591 A 19910626; DE 69103837 T 19910628; ES 91201673 T 19910628; JP 18057591 A 19910626; KR 910010599 A 19910625; PT 9809391 A 19910626; US 54502590 A 19900628